Abstract: A device for coupling an end of a hose to a member, comprises a body provided with an internal channel opening out into a chamber having quick-connection elements for connecting the end of the hose to the channel. The quick-connection elements comprise a washer with teeth disposed in the chamber and associated with a tubular disconnection pusher which is mounted to slide inside the chamber and which possesses a drive end projecting outside the body, and an opposite end for lifting the teeth. The device comprises protection elements for protecting the connection, which include a sleeve (18) possessing axially in succession: a connection portion (19) for connection to the body extending around the drive end; and a hose guide portion (20) which is secured to the connection portion via an end opposite from the body and which extends beyond the drive end coaxially with the internal channel.

Abstract: Elements for connecting a first end selection (3) of pipe elements to a second end selection (4) of pipe elements, the connecting elements including a sealing joint (20) interposed between the end faces (7, 8) of the first and second end sections and fixing elements (32, 44) which are mounted on the first and second end sections and are coupled to first and second axial abutting elements along the first and second end sections in order to hold the above together and compress the sealing joint between them. The first axial abutting elements include an external shoulder (9) formed on the first section near the end face and the second axial abutting elements include a fixed dowel (50) provided with elements (51)for axial fixing thereof along the second end section.

Abstract: Connection elements include a coupling defining an internal channel having an end segment possessing an insertion opening for insertion of an endpiece and provided with members for retaining the endpiece in leaktight manner therein. The members include an annular axially compressible sealing element that is mounted in the coupling to have one face serving as a bearing surface for a terminal face of the endpiece, and an annularly-shaped retaining element elastically deformable in a radial direction that is received in an inner groove (21) of the end segment to have an inner circumferential portion projecting through an opening of the inner groove so as to be received in an outer groove of the endpiece. The inner groove has a concave frustoconical flank beside the opening of the end segment to form members for shrinking the retaining element, and a convex frustoconical flank on its side remote from the opening.

Abstract: Device for connecting one end of a pipe to a bore provided in a fluid transport circuit element, includes a tubular body defining an inner channel for receiving the pipe end, elements for retaining the pipe end in a predetermined axial position in the inner channel and elements for fixing the tubular body in the hole in a predetermined axial position, members for stopping the pipe end mounted on the tubular body designed to be mobile between a projecting position to counter the drive-up of the pipe end to its axial position and a retracted position to clear the passage for the pipe end towards its predetermined axial position, the stop members being designed to co-operate with the element such that they shift from their projecting position to their retracted position when the tubular body is driven in the hole up to its predetermined axial position.

Abstract: A coupler having a tubular body (6) which is arranged to receive a tubular element for transporting fluid and including a pipe end, and which is provided with elements (11) for snap-fastening the tubular element, the coupler including a bushing (15) provided on the inside with elements (23, 25) for retaining the pipe end, which elements are selectively activatable and deactivatable, wherein the bushing is mounted in the tubular body to be movable axially between a position for activating the retaining elements and a position for deactivating the retaining elements, and wherein the bushing is provided with snap-fastening elements complementary to those of the body for co-operating therewith in the activation position.

Abstract: The invention relates to a washer for a tube coupler device, the washer having an inner portion subdivided into a plurality of teeth with active portions having a free edge that defines an inside edge of the washer and that is arranged to penetrate into an outside surface of the tube, wherein the active portions are arranged so that the inside edge is substantially continuous. The invention also provides a method of making the washer and a coupler device.

Abstract: A quick coupling comprising a body with a conical opening and an outside thread, a nut with a central through orifice and a cylindrical counterbore extending the through orifice and tapped over its portion that is remote from the through orifice, and a conical surface connecting the through orifice to the counterbore, the coupling comprising a ring housed in the counterbore of the nut, the ring having a front face directed towards the thread that is fitted with a sealing gasket whose rear face facing towards the coupling surface co-operates therewith to define a radial expansion housing for a split spring washer.

Abstract: The invention concerns a tubular connection piece for a self-closing connecting device, comprising an end (3) to be connected to a member, externally provided with elements (5) for axially locking it in a housing of the connecting device, and internally equipped with a valve (33) mounted sliding relative to a valve seat (37) between closing and opening positions and a spring (40) interposed between a inner flange (41) of the connection piece and the valve to push the valve into its closing position against the valve seat. The invention also concerns a corresponding connection device.

Abstract: A fastener washer for a tube coupling device, the washer being deformable and having an inside circumference subdivided into a plurality of teeth (2) each possessing an active portion (3) connected via an intermediate portion (4) to a root portion (5), the intermediate portion being defined laterally by two parallel edges (9), and the active portion having a width (A) that is greater than a width (C) of the intermediate portion between the two parallel edges.

Abstract: A device for leaktight coupling of a tube to a tubular nose, the tube being provided with an outwardly-directed bead at a distance from its end, the tubular nose presenting an outside thread and including an inlet bore for defining a housing for an annular gasket and an annular gasket-retaining insert, the device including a nut having the tube passing therethrough and presenting an end inside thread for co-operating with the thread of the tubular nose and including a chamber behind the thread, the chamber terminating by a drive wall, and an axial drive collar removably placed between one of the flanks of the bead and the drive wall, the collar extending axially towards the end of the tube beyond the bead in the chamber to co-operate with the insert, slidable in its housing and shaped as a pusher for compressing the gasket between the bore and the tub.

Abstract: A fast coupler for a fluid connection includes a male part and a female part. The female part having a staged counterboring whereof the cross-section of larger diameter can receive an outer flange of the male part, beyond a mobile lock in a housing transverse to the counterboring. The coupler also includes a connection indicating device locked on the female part by a device partly housed in the housing and deactivated by the flange of the male part when it is inserted into the counter boring. The indicator device may include a member for permanent connection to the closed fluid circuit by the coupler.

Abstract: Connection elements for interconnecting two duct ends, the elements comprising a tubular connection member for uniting the duct ends, the tubular member comprising at least one pair of half-bodies which is arranged so as to be closed on at least one duct end and which is associated with elements for gripping the duct end when the pair of half-bodies is closed on the duct end, the gripping elements comprising at least one outwardly-directed projection formed by plastic deformation of the duct end in a position set back from an end face of the duct end, and two inner shoulders of at least one of the half-bodies, which shoulders are spaced apart axially so as to receive therebetween the outwardly-directed projection.

Abstract: A junction element for a hydraulic fluid circuit, comprising a body (1) which is provided with inner channels (2,3) leading in an outer direction through a plurality of connection elements (7,8,9,10) which can cooperate with outer channels and with the support (12) of at least one sensor (13) for the value of a physical parameter of the fluid circulating in one of the inner channels (2,3) of the body.

Abstract: A coupling device for coupling an endpiece to a member, comprises a female portion for receiving the endpiece, and a bushing mounted to slide in the female portion and possessing one end projecting from the female portion and provided with at least one blocking member for blocking the bushing either in a pushed-in, locking position or pulled-back, unlocking position, and an opposite end provided both with front abutment elements for coming into abutment with an annular bead of the endpiece, and rear abutment elements for coming into abutment with the bead so that when the bushing is in its unlocking position, the rear abutment elements are movable by the annular abutment between a position in which they project towards the inside of the bushing and a retracted position, and when the bushing is in its locking position, the rear abutment elements are held in their projecting position.

Abstract: The device for quickly coupling a tube to an element comprises a tubular endpiece (1) subdivided along its axis (2) into a first portion (3) for connecting to the tube and a second portion (4) for coupling to the element (100), and fastening means (3.1, 15) for securing the tube to the endpiece and the endpiece to the element, the second portion (4) of the endpiece (1) possessing a groove (8) for receiving a sealing gasket (9). The endpiece (1) is fitted with a sleeve (10) for protecting the gasket (9), which sleeve is mounted to slide between a position in which it overlies the groove (8), thereby protecting the gasket (9), and a disengaged position which is offset relative to the groove (8).

Abstract: Connection means for interconnecting two duct ends, the means comprising a tubular connection member for uniting the duct ends, the tubular member comprising at least one pair of half-bodies which is arranged so as to be closed on at least one duct end and which is associated with means for gripping said duct end when the pair of half-bodies is closed on said duct end, the gripping means comprising at least one outwardly-directed projection formed by plastic deformation of the duct end in a position set back from an end face of said duct end, and two inner shoulders of at least one of the half-bodies, which shoulders are spaced apart axially so as to receive therebetween the outwardly-directed projection.

Abstract: A ball coupling comprising a male tubular endpiece (2) provided with an outer annular collar (4), a female tubular endpiece (3) having a ball-retaining cage fixed axially thereon, the cage having slots (10) for receiving balls (12), and a thimble (13) disposed coaxially about the cage (6) and mounted thereon via guide means (14, 15) for guiding the thimble to turn about the longitudinal axis (1) of the coupling so as to enable the thimble to turn through a turn angle (&agr;) relative to the cage between a first position and a second position, the thimble having for each ball, a first recess (16) extending in register with the corresponding slot for the first position of the thimble to form an abutment for holding the corresponding ball in a position in which it projects into the inside of the cage, and a second recess (17) connected to the first recess via a sloping wall (18) and offset relative to the first recess by an angle corresponding to the turn angle (&agr;) so as to receive the corresponding ball in

Abstract: A protective endpiece for the end of a tube (100), the endpiece comprises a sheath (2) about an axis (3) possessing a central housing (4) for receiving the end of the tube (100) and has an open end (5) and a closed end (6). The sheath is provided at its open end (5) with a ring (10) that is detachable from the sheath so that after the sheath (2) has been removed and the end of the tube (100) has been coupled to a piece of equipment (200), the ring forms a stopper on,the end of the tube (100) for closing the gap that exists between the end of the tube (100) and the equipment (200).

Abstract: The device comprises a tubular insert (1) possessing external means (2) for fixing it in a bore (34) of the rigid element (30) and internal means for axially locking the tube inside the insert (1). The axial locking means comprise a sleeve (69) disposed inside the tubular insert (1) and possessing a broad end arranged to bear against an internal abutment member (75) of the tubular insert (61) and a narrow end that is elastically deformable in a radial direction between a small rest configuration where it forms an abutment for a shoulder (93) of the tube (90) and an enlarged elastically deformed configuration allowing the shoulder of the tube to pass through while it is being inserted.

Abstract: A device for connecting a pipe end to a member. The device has a tubular endpiece with a first end secured to the member and a second end through which the pipe end can be engaged in the endpiece. The endpiece is provided internally with an abutment against engagement of the pipe end and a way for securing the pipe end in leakproof manner inside the endpiece, and a sleeve that is elastically deformable at least in an axial direction. The sleeve is fixable axially in the endpiece and, towards the first end of the endpiece, has an end provided with an annular internal shoulder for coming into abutment against an end face of the pipe end so as to form the abutment against engagement of the pipe end.